acura Workshop Repair Guides

Acura (Honda) Workshop Service and Repair Manuals

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Fluid Pump: Testing and Inspection

1. Install the pump gears and shaft in the main valve body.

2. Measure the side clearance of the drive and driven gears.

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Pump Gears Side (Radial) Clearance Standard (New): 
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Drive gear (diameter) 0.210 - 0.265 mm (0.0083 - 0.0104 inch).

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Driven gear (radius) 0.035 - 0.063 mm (0.0014 - 0.0025 inch).

3. Remove the shaft, then measure the thrust clearance of the driven gear-to-valve body.

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Drive/Driven Gear thrust (Axial) Clearance:
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Standard (New): 0.03 - 0.05 mm (0.001 - 0.002 inch).

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Service Limit: 0.07 mm (0.0028 inch).

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